Zobrazeno 1 - 10
of 15
pro vyhledávání: '"S J, Tumey"'
Publikováno v:
Biogeosciences, Vol 11, Iss 17, Pp 4839-4852 (2014)
Results obtained from a dedicated radiochemistry cruise approximately 100 days after the 11 March 2011 Tohoku earthquake and subsequent disaster at the Fukushima Daiichi Nuclear Power Plant show that Fukushima derived radionuclides in the nearby ocea
Externí odkaz:
https://doaj.org/article/daad81904cfd445f8590a10da4f3e9a7
Publikováno v:
MRS Advances. 3:1761-1769
The role of oxide nanoparticles in cavity formation of a nano-oxide-dispersed ferritic steel subjected to (Fe + He) dual-ion and (Fe + He + H) triple-ion irradiations has been studied using transmission electron microscopy to elucidate the synergisti
Autor:
N, Gharibyan, K J, Moody, S J, Tumey, T A, Brown, J D, Despotopulos, S A, Faye, K E, Roberts, D A, Shaughnessy
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 107
A high-purity carrier-free (7)Be was efficiently isolated following proton bombardment of a lithium hydroxide-aluminum target. The separation of beryllium from lithium and aluminum was achieved through a hydrochloric acid elution system utilizing cat
Autor:
S. J. Tumey, David L. Knies, John W. Pohlman, Richard B. Coffin, Kenneth S. Grabowski, Clark S Mitchell
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :435-440
Accelerator mass spectrometry for 14C was applied to the study of carbon pools associated with methane hydrate formations found in the seafloor at two continental margin sites. The Gulf of Mexico (GOM) site contains thermogenically produced methane t
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :216-220
This report describes a novel approach to collection and analysis of radiocarbon data due to the unique design of the Naval Research Laboratory Trace Element Accelerator Mass Spectrometry system. In this approach, targets are loaded on the cathode wh
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :72-77
Measurements of radio and stable carbon isotope ratios are now routinely performed at the Naval Research Laboratory Trace Element Accelerator Mass Spectrometer facility. The system capabilities and its application are described. In addition, an overv
Autor:
O. H. W. Siegmund, M. Getaneh, R. Raffanti, S. J. Tumey, J.V. Vallerga, Kenneth S. Grabowski, C. Cetina, David L. Knies
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 513:403-407
The position-sensitive focal plane detector system for the trace element accelerator mass spectrometer at the US Naval Research Laboratory consists of 12 microchannel plate detector modules. Each module provides a 10×2 cm 2 active area and together
Results obtained from a dedicated radiochemistry cruise approximately 100 days after the 11 March 2011 Tohoku earthquake and subsequent disaster at the Dia'ichi Fukushima Nuclear Power Plant show that Fukushima derived radionuclides in the nearby oce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb8c577b8398ac4851df84cea41a3cc1
https://doi.org/10.5194/bgd-10-19935-2013
https://doi.org/10.5194/bgd-10-19935-2013
Publikováno v:
Review of Scientific Instruments. 75:1910-1912
A gas-fed negative ion source for use in an accelerator mass spectrometry system has been built at the United States Naval Research Laboratory. This ion source is a filament driven plasma ion source using a multicusp magnet arrangement for plasma con